For thousands of years now, there have been human beings who didn’t care much for a party. Calling them “introverts” clarifies nothing and requires absolutely no knowledge of the human psyche whatsoever. I am similarly incredulous when people say, “Did you know that tomatoes are actually fruit, not vegetables?” as though housewives and chefs have labored in ignorance for hundreds of years, but that scientists have lately freed them. Who empowered food scientists to determine what tomatoes actually are? Why do poets and restauranteurs not get to decide? And who empowered social scientists to determine that loudmouths are “actually extroverts” and that milquetoasts are “actually introverts”?